The Mattel Therizinosaurus was a toy planned to released sometime around 2019 for Jurassic World: Dino Rivals. The toy was likely a dual attack, probably having features that slash the claws, or bite/swing tail (based on articulation points in test shots). The name was a big rumour spreading before the release of the second line, but was confirmed when prototype images leaked. It is possible the dinosaur could be repainted and released later, like the Plesiosaurus that was scrapped for the same line, and released later.